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United States Patent | 5,542,656 |
Stauber | August 6, 1996 |
An apparatus for separating stacked printed products includes suction heads anchored on a rotor by a respective swivel arm. The swivel arms are driven with regard to their swivel position by a swiveling drive superposed on the rotary drive of the rotor such that they enter the takeover point in pushing operation and leave the latter in pulling operation. At the deflecting point, the suction heads have time to suck against the edge of the respectively outermost product; by their tilting movement at the deflecting point, the seized product edge is separated definitely and reliably from the neighboring product. In connection with a transporting-away device with grippers circulating successively one after the other, the edge of the products is placed into the grippers by the suction heads swiveled during the circulation.
Inventors: | Stauber; Hans-Ulrich (Gruit, CH) |
Assignee: | Ferag AG (CH) |
Appl. No.: | 512561 |
Filed: | August 8, 1995 |
May 21, 1993[CH] | 01 542/93 |
Current U.S. Class: | 271/11; 271/12; 271/95; 271/277 |
Intern'l Class: | B65H 005/08 |
Field of Search: | 271/11,12,91,95,96,108,277 |
3386558 | Jun., 1968 | Benatar | 271/12. |
3831930 | Aug., 1974 | Shimizu | 271/95. |
4127262 | Nov., 1978 | Eberle et al. | 271/12. |
4279412 | Jul., 1981 | Glatz | 271/108. |
4518301 | May., 1985 | Greenwell | 271/95. |
5014972 | May., 1991 | Anderson et al. | 271/3. |
5054761 | Oct., 1991 | Dietrich et al. | 271/12. |
5092576 | Mar., 1992 | Takahashi et al. | 271/3. |
5169285 | Dec., 1992 | Muller | 41/797. |
Foreign Patent Documents | |||
0332828 | Jan., 1989 | EP | . |
4029520 | Mar., 1992 | DE | 271/91. |
2260123 | Apr., 1993 | GB | 271/12. |